/* roulang page: index */
:root {
      --primary: #0F4C81;
      --primary-hover: #0a355c;
      --accent: #F26419;
      --accent-hover: #d9530e;
      --blue-light: #2A75D3;
      --bg-main: #F8FAFC;
      --bg-white: #FFFFFF;
      --bg-dark: #0B1B2B;
      --text-main: #0F172A;
      --text-body: #334155;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --radius-full: 9999px;
      --shadow-sm: 0 2px 4px rgba(15, 76, 129, 0.04);
      --shadow-card: 0 4px 12px -2px rgba(15, 76, 129, 0.08);
      --shadow-hover: 0 16px 24px -4px rgba(15, 76, 129, 0.12);
      --container-width: 1240px;
    }
    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-body);
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    ul, ol {
      list-style: none;
    }
    .container {
      width: 100%;
      max-width: var(--container-width);
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }
    .section-padding {
      padding-top: 88px;
      padding-bottom: 88px;
    }
    .section-alt {
      background-color: var(--bg-white);
    }
    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 52px auto;
    }
    .badge-sub {
      display: inline-block;
      padding: 6px 16px;
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--primary);
      background-color: #EBF3FA;
      border-radius: var(--radius-full);
      margin-bottom: 14px;
      letter-spacing: 0.5px;
    }
    .section-title {
      font-size: 2.15rem;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 16px;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 28px;
      font-size: 0.975rem;
      font-weight: 600;
      border-radius: var(--radius-md);
      cursor: pointer;
      border: 1px solid transparent;
      transition: all 0.25s ease;
      text-align: center;
    }
    .btn-primary {
      background-color: var(--primary);
      color: #FFFFFF;
      box-shadow: 0 4px 10px rgba(15, 76, 129, 0.2);
    }
    .btn-primary:hover {
      background-color: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: 0 8px 16px rgba(15, 76, 129, 0.25);
    }
    .btn-accent {
      background-color: var(--accent);
      color: #FFFFFF;
      box-shadow: 0 4px 10px rgba(242, 100, 25, 0.25);
    }
    .btn-accent:hover {
      background-color: var(--accent-hover);
      transform: translateY(-2px);
      box-shadow: 0 8px 16px rgba(242, 100, 25, 0.35);
    }
    .btn-outline {
      border-color: var(--border-color);
      color: var(--text-main);
      background-color: var(--bg-white);
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background-color: #F1F6FB;
    }
    /* 顶部通栏导航 */
    .top-bar {
      background-color: #0B2238;
      color: #CBD5E1;
      font-size: 0.8125rem;
      border-bottom: 1px solid rgba(255,255,255,0.08);
      padding: 8px 0;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .top-bar-links a {
      color: #94A3B8;
      margin-left: 18px;
    }
    .top-bar-links a:hover {
      color: #FFFFFF;
    }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.5px;
    }
    .brand-icon {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--primary), var(--blue-light));
      color: #FFF;
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 1.1rem;
    }
    .nav-menu {
      display: flex;
      align-items: center;
      gap: 24px;
    }
    .nav-item {
      position: relative;
    }
    .nav-link {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-main);
      padding: 24px 4px;
      display: flex;
      align-items: center;
      gap: 4px;
    }
    .nav-link:hover, .nav-item.active .nav-link {
      color: var(--primary);
    }
    .dropdown-panel {
      position: absolute;
      top: 100%;
      left: 0;
      width: 270px;
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      box-shadow: 0 12px 28px rgba(0, 0, 0, 0.08);
      padding: 12px;
      opacity: 0;
      visibility: hidden;
      transform: translateY(10px);
      transition: all 0.25s cubic-bezier(0.165, 0.84, 0.44, 1);
    }
    .nav-item:hover .dropdown-panel {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }
    .dropdown-panel a {
      display: block;
      padding: 10px 12px;
      font-size: 0.875rem;
      color: var(--text-body);
      border-radius: var(--radius-sm);
    }
    .dropdown-panel a:hover {
      background-color: #F1F6FB;
      color: var(--primary);
      padding-left: 16px;
    }
    /* 板块 1: Hero 首屏 */
    #hero {
      position: relative;
      background: linear-gradient(135deg, #0A2F52 0%, #0F4C81 100%);
      color: #FFFFFF;
      padding: 90px 0 100px 0;
      overflow: hidden;
    }
    .hero-bg-overlay {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-image: url('/assets/images/a345f2821eb916d4.jpg');
      background-size: cover;
      background-position: center;
      opacity: 0.12;
      pointer-events: none;
    }
    .hero-grid {
      position: relative;
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }
    .hero-tag {
      display: inline-flex;
      align-items: center;
      background: rgba(255, 255, 255, 0.12);
      border: 1px solid rgba(255, 255, 255, 0.2);
      padding: 6px 14px;
      border-radius: var(--radius-full);
      font-size: 0.85rem;
      color: #93C5FD;
      margin-bottom: 20px;
    }
    .hero-title {
      font-size: 2.75rem;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 20px;
      color: #FFFFFF;
    }
    .hero-title span {
      color: #FBBF24;
    }
    .hero-text {
      font-size: 1.1rem;
      line-height: 1.8;
      color: #E2E8F0;
      margin-bottom: 32px;
      max-width: 580px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 36px;
    }
    .hero-data-strip {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.16);
    }
    .hero-data-item strong {
      display: block;
      font-size: 1.6rem;
      font-weight: 700;
      color: #FFFFFF;
    }
    .hero-data-item span {
      font-size: 0.825rem;
      color: #94A3B8;
    }
    .hero-visual {
      position: relative;
      border-radius: var(--radius-lg);
      padding: 12px;
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.18);
      box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
    }
    .hero-visual img {
      border-radius: var(--radius-md);
      width: 100%;
      height: 380px;
      object-fit: cover;
    }
    /* 板块 2: 痛点卡片 */
    .pain-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .pain-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }
    .pain-card:hover {
      border-color: #CBD5E1;
      transform: translateY(-4px);
      box-shadow: var(--shadow-card);
    }
    .pain-num {
      width: 38px;
      height: 38px;
      border-radius: 50%;
      background: #FEE2E2;
      color: #DC2626;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      margin-bottom: 18px;
    }
    .pain-card h3 {
      font-size: 1.125rem;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .pain-card p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }
    /* 板块 3: 架构矩阵与标准认证 */
    .intro-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }
    .intro-media {
      position: relative;
    }
    .intro-media img {
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-card);
      width: 100%;
      height: 400px;
      object-fit: cover;
    }
    .intro-tag-box {
      position: absolute;
      bottom: -20px;
      right: -10px;
      background: var(--bg-white);
      border-radius: var(--radius-md);
      padding: 16px 20px;
      box-shadow: var(--shadow-hover);
      border-left: 4px solid var(--accent);
      max-width: 240px;
    }
    .intro-tag-box p {
      font-size: 0.8125rem;
      font-weight: 600;
      color: var(--text-main);
    }
    .intro-features {
      margin-top: 24px;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .intro-feat-item {
      display: flex;
      gap: 16px;
      align-items: flex-start;
    }
    .intro-feat-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background-color: var(--primary);
      margin-top: 7px;
      flex-shrink: 0;
    }
    .intro-feat-text h4 {
      font-size: 1rem;
      color: var(--text-main);
      margin-bottom: 4px;
    }
    .intro-feat-text p {
      font-size: 0.88rem;
      color: var(--text-muted);
    }
    /* 板块 4: 6大核心优势网格 */
    .advantage-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .adv-card {
      background: var(--bg-white);
      border: 1px solid #E6EDF5;
      border-radius: var(--radius-lg);
      padding: 32px 28px;
      box-shadow: var(--shadow-card);
      transition: all 0.3s ease;
    }
    .adv-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
      border-color: #BFDBFE;
    }
    .adv-icon {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-md);
      background: #EBF3FA;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 20px;
    }
    .adv-card h3 {
      font-size: 1.2rem;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .adv-card p {
      font-size: 0.925rem;
      color: var(--text-muted);
      line-height: 1.65;
    }
    /* 板块 5: 3大热门版本卡片 */
    .solutions-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
    }
    .sol-card {
      background: var(--bg-white);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-card);
      transition: all 0.3s ease;
    }
    .sol-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
    }
    .sol-header {
      padding: 30px;
      background: #FAFBFD;
      border-bottom: 1px solid var(--border-color);
    }
    .sol-header.sol-popular {
      background: #EFF6FF;
      border-top: 4px solid var(--primary);
    }
    .sol-tag {
      font-size: 0.78rem;
      font-weight: 600;
      color: var(--primary);
      text-transform: uppercase;
      margin-bottom: 8px;
      display: inline-block;
    }
    .sol-header h3 {
      font-size: 1.35rem;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .sol-header p {
      font-size: 0.88rem;
      color: var(--text-muted);
    }
    .sol-body {
      padding: 30px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .sol-list {
      margin-bottom: 28px;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .sol-list li {
      font-size: 0.88rem;
      color: var(--text-body);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .sol-list li::before {
      content: "✓";
      color: #10B981;
      font-weight: bold;
    }
    /* 板块 6: 沉浸式深色理念区 */
    #dark-concept {
      background-color: var(--bg-dark);
      color: #FFFFFF;
      padding: 96px 0;
      text-align: center;
      position: relative;
    }
    .dark-inner {
      max-width: 860px;
      margin: 0 auto;
    }
    .dark-title {
      font-size: 2.35rem;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 24px;
      line-height: 1.35;
    }
    .dark-desc {
      font-size: 1.1rem;
      line-height: 1.85;
      color: #94A3B8;
      margin-bottom: 40px;
    }
    .concept-points {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 40px;
      text-align: left;
    }
    .concept-box {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-md);
      padding: 24px;
    }
    .concept-box h4 {
      font-size: 1.1rem;
      color: #38BDF8;
      margin-bottom: 8px;
    }
    .concept-box p {
      font-size: 0.88rem;
      color: #CBD5E1;
      line-height: 1.6;
    }
    /* 板块 7: 实施流程 */
    .steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }
    .step-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 22px;
      position: relative;
      box-shadow: var(--shadow-sm);
    }
    .step-badge {
      display: inline-block;
      width: 32px;
      height: 32px;
      line-height: 32px;
      text-align: center;
      background: var(--primary);
      color: #FFFFFF;
      font-weight: 700;
      border-radius: var(--radius-sm);
      margin-bottom: 16px;
      font-size: 0.95rem;
    }
    .step-card h3 {
      font-size: 1.1rem;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .step-card p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
    }
    /* 板块 8: 真实机构故事 */
    .story-card {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      background: var(--bg-white);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      align-items: center;
    }
    .story-img-wrap img {
      width: 100%;
      height: 100%;
      min-height: 380px;
      object-fit: cover;
    }
    .story-content {
      padding: 44px;
    }
    .story-tag {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--accent);
      margin-bottom: 12px;
    }
    .story-content h3 {
      font-size: 1.7rem;
      color: var(--text-main);
      margin-bottom: 18px;
      line-height: 1.35;
    }
    .story-content p {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.75;
      margin-bottom: 24px;
    }
    .story-stats {
      display: flex;
      gap: 32px;
      border-top: 1px solid var(--border-color);
      padding-top: 20px;
    }
    .story-stat-item strong {
      display: block;
      font-size: 1.5rem;
      font-weight: 700;
      color: var(--primary);
    }
    .story-stat-item span {
      font-size: 0.8125rem;
      color: var(--text-muted);
    }
    /* 板块 9: 关键数据统计条 */
    .metrics-bar {
      background: linear-gradient(90deg, #0F4C81 0%, #1E6091 100%);
      color: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 48px 40px;
      box-shadow: var(--shadow-card);
    }
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 28px;
      text-align: center;
    }
    .metric-col:not(:last-child) {
      border-right: 1px solid rgba(255, 255, 255, 0.15);
    }
    .metric-value {
      font-size: 2.6rem;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 6px;
    }
    .metric-value span {
      font-size: 1.4rem;
      color: #FBBF24;
    }
    .metric-label {
      font-size: 0.925rem;
      color: #E2E8F0;
    }
    /* 板块 10: 用户评价区 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .testi-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px;
      box-shadow: var(--shadow-card);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testi-stars {
      color: #F59E0B;
      font-size: 1rem;
      margin-bottom: 14px;
    }
    .testi-quote {
      font-size: 0.95rem;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 24px;
      font-style: italic;
    }
    .testi-user {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .testi-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #E2E8F0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary);
      font-size: 1.1rem;
    }
    .testi-info h4 {
      font-size: 0.95rem;
      color: var(--text-main);
    }
    .testi-info p {
      font-size: 0.8rem;
      color: var(--text-muted);
    }
    /* 板块 11: 适用人群与机构定位 */
    .audiences-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .aud-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px 24px;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }
    .aud-card:hover {
      border-color: var(--primary);
      transform: translateY(-4px);
      box-shadow: var(--shadow-card);
    }
    .aud-tag {
      display: inline-block;
      padding: 4px 10px;
      background: #F1F5F9;
      color: var(--text-muted);
      font-size: 0.75rem;
      border-radius: var(--radius-sm);
      margin-bottom: 16px;
    }
    .aud-card h3 {
      font-size: 1.15rem;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .aud-card p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.65;
    }
    /* 板块 12: 数字化资讯区 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .news-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      display: flex;
      flex-direction: column;
      transition: all 0.3s ease;
    }
    .news-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
    }
    .news-thumb {
      height: 200px;
      overflow: hidden;
      position: relative;
    }
    .news-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .news-card:hover .news-thumb img {
      transform: scale(1.05);
    }
    .news-content {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .news-meta {
      display: flex;
      justify-content: space-between;
      font-size: 0.8rem;
      color: var(--text-muted);
      margin-bottom: 10px;
    }
    .news-content h3 {
      font-size: 1.15rem;
      color: var(--text-main);
      margin-bottom: 10px;
      line-height: 1.45;
    }
    .news-content p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 16px;
    }
    .news-link {
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    .news-link:hover {
      color: var(--accent);
    }
    /* 板块 13: 常见使用问题 FAQ */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all 0.3s ease;
    }
    .faq-item[open] {
      border-color: #BFDBFE;
      box-shadow: var(--shadow-card);
    }
    .faq-item summary {
      padding: 20px 24px;
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-item summary::-webkit-details-marker {
      display: none;
    }
    .faq-item summary::after {
      content: "+";
      font-size: 1.4rem;
      font-weight: 400;
      color: var(--primary);
      transition: transform 0.2s ease;
    }
    .faq-item[open] summary::after {
      content: "−";
      color: var(--accent);
    }
    .faq-answer {
      padding: 0 24px 22px 24px;
      font-size: 0.925rem;
      color: var(--text-muted);
      line-height: 1.75;
      border-top: 1px solid #F1F5F9;
      padding-top: 16px;
    }
    /* 板块 14: 底部意向表单与 CTA */
    #cta {
      background: linear-gradient(180deg, #F8FAFC 0%, #EDF4FA 100%);
      padding: 90px 0;
      border-top: 1px solid var(--border-color);
    }
    .cta-box {
      background: var(--bg-white);
      border: 1px solid #D6E4F0;
      border-radius: var(--radius-lg);
      padding: 56px 48px;
      box-shadow: var(--shadow-hover);
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 48px;
      align-items: center;
    }
    .cta-text h2 {
      font-size: 2.1rem;
      color: var(--text-main);
      margin-bottom: 16px;
      line-height: 1.3;
    }
    .cta-text p {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.75;
      margin-bottom: 24px;
    }
    .cta-highlights {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .cta-highlights span {
      font-size: 0.9rem;
      color: var(--text-body);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .cta-highlights span::before {
      content: "●";
      font-size: 0.65rem;
      color: var(--primary);
    }
    .cta-form {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-group label {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-main);
    }
    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.925rem;
      color: var(--text-main);
      outline: none;
      transition: border-color 0.2s;
    }
    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(15, 76, 129, 0.1);
    }
    /* 页脚设计 */
    .site-footer {
      background-color: #0B1926;
      color: #94A3B8;
      font-size: 0.875rem;
      padding: 72px 0 36px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    .footer-top {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 40px;
      padding-bottom: 50px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .footer-col h4 {
      font-size: 1rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 20px;
    }
    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .footer-links a:hover {
      color: #FFFFFF;
      padding-left: 4px;
    }
    .footer-contact p {
      margin-bottom: 10px;
      line-height: 1.6;
    }
    .footer-contact strong {
      color: #FFFFFF;
    }
    .footer-bottom {
      padding-top: 32px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.8125rem;
    }
    .footer-bottom a {
      color: #94A3B8;
    }
    .footer-bottom a:hover {
      color: #FFFFFF;
    }
    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-grid, .intro-grid, .story-card, .cta-box {
        grid-template-columns: 1fr;
        gap: 36px;
      }
      .pain-grid, .steps-grid, .audiences-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .advantage-grid, .solutions-grid, .news-grid, .testimonial-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 36px;
      }
      .metric-col:nth-child(2) {
        border-right: none;
      }
      .footer-top {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .nav-menu {
        display: none;
      }
      .section-padding {
        padding-top: 60px;
        padding-bottom: 60px;
      }
      .section-title {
        font-size: 1.75rem;
      }
      .hero-title {
        font-size: 2.1rem;
      }
      .pain-grid, .steps-grid, .audiences-grid, .advantage-grid, .solutions-grid, .news-grid, .testimonial-grid {
        grid-template-columns: 1fr;
      }
      .metrics-grid {
        grid-template-columns: 1fr;
      }
      .metric-col:not(:last-child) {
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.15);
        padding-bottom: 24px;
      }
      .concept-points {
        grid-template-columns: 1fr;
      }
      .cta-box {
        padding: 32px 20px;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }